Renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges and removed its [Beta] mark. Resizing windows from edge is now enabled by default (io.ConfigWindowsResizeFromEdges=true). Note that it only works _if_ the back-end sets ImGuiBackendFlags_HasMouseCursors, which the standard back-end do.

Author: ocornut

docs/CHANGELOG.txt

@@ -35,9 +35,14 @@ HOW TO UPDATE?
 
 Breaking Changes:
 
+- Renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges and removed its [Beta] mark.
+  The addition of new configuration options in the Docking branch is pushing for a little reorganization of those names.
+
 Other Changes:
 - Examples: DirectX10/11/12: Made imgui_impl_dx10/dx11/dx12.cpp link d3dcompiler.lib from the .cpp file
   to ease integration.
+- Resizing windows from edge is now enabled by default (io.ConfigWindowsResizeFromEdges=true). Note that 
+  it only works _if_ the back-end sets ImGuiBackendFlags_HasMouseCursors, which the standard back-end do.
 
 
 -----------------------------------------------------------------------

imgui.cpp

@@ -345,7 +345,8 @@ CODE
  When you are not sure about a old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
- - 2018/10/12 (1.66) - Renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files.
+ - 2018/12/10 (1.67) - renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges as we are doing a large pass on configuration flags.
+ - 2018/10/12 (1.66) - renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files.
  - 2018/09/28 (1.66) - renamed SetScrollHere() to SetScrollHereY(). Kept redirection function (will obsolete).
  - 2018/09/06 (1.65) - renamed stb_truetype.h to imstb_truetype.h, stb_textedit.h to imstb_textedit.h, and stb_rect_pack.h to imstb_rectpack.h. 
                        If you were conveniently using the imgui copy of those STB headers in your project you will have to update your include paths.
@@ -356,7 +357,7 @@ CODE
  - 2018/08/22 (1.63) - renamed IsItemDeactivatedAfterChange() to IsItemDeactivatedAfterEdit() for consistency with new IsItemEdited() API. Kept redirection function (will obsolete soonish as IsItemDeactivatedAfterChange() is very recent).
  - 2018/08/21 (1.63) - renamed ImGuiTextEditCallback to ImGuiInputTextCallback, ImGuiTextEditCallbackData to ImGuiInputTextCallbackData for consistency. Kept redirection types (will obsolete).
  - 2018/08/21 (1.63) - removed ImGuiInputTextCallbackData::ReadOnly since it is a duplication of (ImGuiInputTextCallbackData::Flags & ImGuiInputTextFlags_ReadOnly).
- - 2018/08/01 (1.63) - removed per-window ImGuiWindowFlags_ResizeFromAnySide beta flag in favor of a global io.ConfigResizeWindowsFromEdges to enable the feature.
+ - 2018/08/01 (1.63) - removed per-window ImGuiWindowFlags_ResizeFromAnySide beta flag in favor of a global io.ConfigResizeWindowsFromEdges [update 1.67 renamed to ConfigWindowsResizeFromEdges] to enable the feature.
  - 2018/08/01 (1.63) - renamed io.OptCursorBlink to io.ConfigCursorBlink [-> io.ConfigInputTextCursorBlink in 1.65], io.OptMacOSXBehaviors to ConfigMacOSXBehaviors for consistency.
  - 2018/07/22 (1.63) - changed ImGui::GetTime() return value from float to double to avoid accumulating floating point imprecisions over time.
  - 2018/07/08 (1.63) - style: renamed ImGuiCol_ModalWindowDarkening to ImGuiCol_ModalWindowDimBg for consistency with other features. Kept redirection enum (will obsolete).
@@ -902,9 +903,9 @@ CODE
 static const float NAV_WINDOWING_HIGHLIGHT_DELAY            = 0.20f;    // Time before the highlight and screen dimming starts fading in
 static const float NAV_WINDOWING_LIST_APPEAR_DELAY          = 0.15f;    // Time before the window list starts to appear
 
-// Window resizing from edges (when io.ConfigResizeWindowsFromEdges = true)
-static const float RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS = 4.0f;     // Extend outside and inside windows. Affect FindHoveredWindow().
-static const float RESIZE_WINDOWS_FROM_EDGES_FEEDBACK_TIMER = 0.04f;    // Reduce visual noise by only highlighting the border after a certain time.
+// Window resizing from edges (when io.ConfigWindowsResizeFromEdges = true and ImGuiBackendFlags_HasMouseCursors is set in io.BackendFlags by back-end)
+static const float WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS = 4.0f;     // Extend outside and inside windows. Affect FindHoveredWindow().
+static const float WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER = 0.04f;    // Reduce visual noise by only highlighting the border after a certain time.
 
 //-------------------------------------------------------------------------
 // [SECTION] FORWARD DECLARATIONS
@@ -1086,7 +1087,7 @@ ImGuiIO::ImGuiIO()
     ConfigMacOSXBehaviors = false;
 #endif
     ConfigInputTextCursorBlink = true;
-    ConfigResizeWindowsFromEdges = false;
+    ConfigWindowsResizeFromEdges = true;
 
     // Platform Functions
     BackendPlatformName = BackendRendererName = NULL;
@@ -3143,9 +3144,9 @@ void ImGui::NewFrame()
     if (g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard)
         IM_ASSERT(g.IO.KeyMap[ImGuiKey_Space] != -1 && "ImGuiKey_Space is not mapped, required for keyboard navigation.");
 
-    // Perform simple check: the beta io.ConfigResizeWindowsFromEdges option requires back-end to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
-    if (g.IO.ConfigResizeWindowsFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
-        g.IO.ConfigResizeWindowsFromEdges = false;
+    // Perform simple check: the beta io.ConfigWindowsResizeFromEdges option requires back-end to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
+    if (g.IO.ConfigWindowsResizeFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
+        g.IO.ConfigWindowsResizeFromEdges = false;
 
     // Load settings on first frame (if not explicitly loaded manually before)
     if (!g.SettingsLoaded)
@@ -3753,8 +3754,8 @@ static void FindHoveredWindow()
         hovered_window = g.MovingWindow;
 
     ImVec2 padding_regular = g.Style.TouchExtraPadding;
-    ImVec2 padding_for_resize_from_edges = g.IO.ConfigResizeWindowsFromEdges ? ImMax(g.Style.TouchExtraPadding, ImVec2(RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS, RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS)) : padding_regular;
-    for (int i = g.Windows.Size - 1; i >= 0 && hovered_window == NULL; i--)
+    ImVec2 padding_for_resize_from_edges = g.IO.ConfigWindowsResizeFromEdges ? ImMax(g.Style.TouchExtraPadding, ImVec2(WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS, WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS)) : padding_regular;
+    for (int i = g.Windows.Size - 1; i >= 0; i--)
     {
         ImGuiWindow* window = g.Windows[i];
         if (!window->Active || window->Hidden)
@@ -4451,10 +4452,10 @@ static void ImGui::UpdateManualResize(ImGuiWindow* window, const ImVec2& size_au
     if (window->WasActive == false) // Early out to avoid running this code for e.g. an hidden implicit/fallback Debug window.
         return;
 
-    const int resize_border_count = g.IO.ConfigResizeWindowsFromEdges ? 4 : 0;
+    const int resize_border_count = g.IO.ConfigWindowsResizeFromEdges ? 4 : 0;
     const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
     const float grip_hover_inner_size = (float)(int)(grip_draw_size * 0.75f);
-    const float grip_hover_outer_size = g.IO.ConfigResizeWindowsFromEdges ? RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS : 0.0f;
+    const float grip_hover_outer_size = g.IO.ConfigWindowsResizeFromEdges ? WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS : 0.0f;
 
     ImVec2 pos_target(FLT_MAX, FLT_MAX);
     ImVec2 size_target(FLT_MAX, FLT_MAX);
@@ -4495,10 +4496,10 @@ static void ImGui::UpdateManualResize(ImGuiWindow* window, const ImVec2& size_au
     for (int border_n = 0; border_n < resize_border_count; border_n++)
     {
         bool hovered, held;
-        ImRect border_rect = GetResizeBorderRect(window, border_n, grip_hover_inner_size, RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS);
+        ImRect border_rect = GetResizeBorderRect(window, border_n, grip_hover_inner_size, WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS);
         ButtonBehavior(border_rect, window->GetID((void*)(intptr_t)(border_n + 4)), &hovered, &held, ImGuiButtonFlags_FlattenChildren);
         //GetOverlayDrawList(window)->AddRect(border_rect.Min, border_rect.Max, IM_COL32(255, 255, 0, 255));
-        if ((hovered && g.HoveredIdTimer > RESIZE_WINDOWS_FROM_EDGES_FEEDBACK_TIMER) || held)
+        if ((hovered && g.HoveredIdTimer > WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER) || held)
         {
             g.MouseCursor = (border_n & 1) ? ImGuiMouseCursor_ResizeEW : ImGuiMouseCursor_ResizeNS;
             if (held) *border_held = border_n;
@@ -4507,10 +4508,10 @@ static void ImGui::UpdateManualResize(ImGuiWindow* window, const ImVec2& size_au
         {
             ImVec2 border_target = window->Pos;
             ImVec2 border_posn;
-            if (border_n == 0) { border_posn = ImVec2(0, 0); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS); }
-            if (border_n == 1) { border_posn = ImVec2(1, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS); }
-            if (border_n == 2) { border_posn = ImVec2(0, 1); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS); }
-            if (border_n == 3) { border_posn = ImVec2(0, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + RESIZE_WINDOWS_FROM_EDGES_HALF_THICKNESS); }
+            if (border_n == 0) { border_posn = ImVec2(0, 0); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS); }
+            if (border_n == 1) { border_posn = ImVec2(1, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS); }
+            if (border_n == 2) { border_posn = ImVec2(0, 1); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS); }
+            if (border_n == 3) { border_posn = ImVec2(0, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS); }
             CalcResizePosSizeFromAnyCorner(window, border_target, border_posn, &pos_target, &size_target);
         }
     }
@@ -4859,7 +4860,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         // Handle manual resize: Resize Grips, Borders, Gamepad
         int border_held = -1;
         ImU32 resize_grip_col[4] = { 0 };
-        const int resize_grip_count = g.IO.ConfigResizeWindowsFromEdges ? 2 : 1; // 4
+        const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // 4
         const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
         if (!window->Collapsed)
             UpdateManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0]);

imgui.h

@@ -679,7 +679,7 @@ enum ImGuiWindowFlags_
 
     // [Obsolete]
     //ImGuiWindowFlags_ShowBorders          = 1 << 7,   // --> Set style.FrameBorderSize=1.0f / style.WindowBorderSize=1.0f to enable borders around windows and items
-    //ImGuiWindowFlags_ResizeFromAnySide    = 1 << 17,  // --> Set io.ConfigResizeWindowsFromEdges and make sure mouse cursors are supported by back-end (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)
+    //ImGuiWindowFlags_ResizeFromAnySide    = 1 << 17,  // --> Set io.ConfigWindowsResizeFromEdges and make sure mouse cursors are supported by back-end (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)
 };
 
 // Flags for ImGui::InputText()
@@ -1162,10 +1162,10 @@ struct ImGuiIO
     ImVec2        DisplayVisibleMax;        // <unset> (0.0f,0.0f)  // [OBSOLETE: just use io.DisplaySize!] If the values are the same, we defaults to Min=(0.0f) and Max=DisplaySize
 
     // Miscellaneous configuration options
-    bool          MouseDrawCursor;              // = false          // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by back-end implementations.
-    bool          ConfigMacOSXBehaviors;        // = defined(__APPLE__) // OS X style: Text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl (was called io.OptMacOSXBehaviors prior to 1.63)
-    bool          ConfigInputTextCursorBlink;   // = true           // Set to false to disable blinking cursor, for users who consider it distracting. (was called: io.OptCursorBlink prior to 1.63)
-    bool          ConfigResizeWindowsFromEdges; // = false          // [BETA] Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be the ImGuiWindowFlags_ResizeFromAnySide flag)
+    bool          MouseDrawCursor;                  // = false      // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by back-end implementations.
+    bool          ConfigMacOSXBehaviors;            // = defined(__APPLE__) // OS X style: Text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl (was called io.OptMacOSXBehaviors prior to 1.63)
+    bool          ConfigInputTextCursorBlink;       // = true       // Set to false to disable blinking cursor, for users who consider it distracting. (was called: io.OptCursorBlink prior to 1.63)
+    bool          ConfigWindowsResizeFromEdges;     // = true       // Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be the a per-window ImGuiWindowFlags_ResizeFromAnySide flag)
 
     //------------------------------------------------------------------
     // Platform Functions

imgui_demo.cpp

@@ -316,7 +316,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
             ImGui::SameLine(); ShowHelpMarker("Instruct back-end to not alter mouse cursor shape and visibility.");
             ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
             ImGui::SameLine(); ShowHelpMarker("Set to false to disable blinking cursor, for users who consider it distracting");
-            ImGui::Checkbox("io.ConfigResizeWindowsFromEdges [beta]", &io.ConfigResizeWindowsFromEdges);
+            ImGui::Checkbox("io.ConfigWindowsResizeFromEdges", &io.ConfigWindowsResizeFromEdges);
             ImGui::SameLine(); ShowHelpMarker("Enable resizing of windows from their edges and from the lower-left corner.\nThis requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback.");
             ImGui::Checkbox("io.MouseDrawCursor", &io.MouseDrawCursor);
             ImGui::SameLine(); ShowHelpMarker("Instruct Dear ImGui to render a mouse cursor for you. Note that a mouse cursor rendered via your application GPU rendering path will feel more laggy than hardware cursor, but will be more in sync with your other visuals.\n\nSome desktop applications may use both kinds of cursors (e.g. enable software cursor only when resizing/dragging something).");
@@ -2532,25 +2532,23 @@ void ImGui::ShowAboutWindow(bool* p_open)
         ImGui::Text("define: __clang_version__=%s", __clang_version__);
 #endif
         ImGui::Separator();
-        ImGui::Text("io.ConfigFlags: 0x%08X", io.ConfigFlags);
-        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard)    ImGui::Text(" NavEnableKeyboard");
-        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad)     ImGui::Text(" NavEnableGamepad");
-        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) ImGui::Text(" NavEnableSetMousePos");
-        if (io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard) ImGui::Text(" NavNoCaptureKeyboard");
-        if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)              ImGui::Text(" NoMouse");
-        if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)  ImGui::Text(" NoMouseCursorChange");
-        if (io.ConfigFlags & ImGuiConfigFlags_IsSRGB)               ImGui::Text(" IsSRGB");
-        if (io.ConfigFlags & ImGuiConfigFlags_IsTouchScreen)        ImGui::Text(" IsTouchScreen");
-        if (io.MouseDrawCursor)                                     ImGui::Text(" MouseDrawCursor");
-        if (io.ConfigMacOSXBehaviors)                               ImGui::Text(" ConfigMacOSXBehaviors");
-        if (io.ConfigInputTextCursorBlink)                          ImGui::Text(" ConfigInputTextCursorBlink");
-        if (io.ConfigResizeWindowsFromEdges)                        ImGui::Text(" ConfigResizeWindowsFromEdges");
-        ImGui::Text("io.BackendFlags: 0x%08X", io.BackendFlags);
-        if (io.BackendFlags & ImGuiBackendFlags_HasGamepad)         ImGui::Text(" HasGamepad");
-        if (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)    ImGui::Text(" HasMouseCursors");
-        if (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos)     ImGui::Text(" HasSetMousePos");
         ImGui::Text("io.BackendPlatformName: %s", io.BackendPlatformName ? io.BackendPlatformName : "NULL");
         ImGui::Text("io.BackendRendererName: %s", io.BackendRendererName ? io.BackendRendererName : "NULL");
+        ImGui::Text("io.ConfigFlags: 0x%08X", io.ConfigFlags);
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard)        ImGui::Text(" NavEnableKeyboard");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad)         ImGui::Text(" NavEnableGamepad");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos)     ImGui::Text(" NavEnableSetMousePos");
+        if (io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard)     ImGui::Text(" NavNoCaptureKeyboard");
+        if (io.ConfigFlags & ImGuiConfigFlags_NoMouse)                  ImGui::Text(" NoMouse");
+        if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)      ImGui::Text(" NoMouseCursorChange");
+        if (io.MouseDrawCursor)                                         ImGui::Text("io.MouseDrawCursor");
+        if (io.ConfigMacOSXBehaviors)                                   ImGui::Text("io.ConfigMacOSXBehaviors");
+        if (io.ConfigInputTextCursorBlink)                              ImGui::Text("io.ConfigInputTextCursorBlink");
+        if (io.ConfigWindowsResizeFromEdges)                            ImGui::Text("io.ConfigWindowsResizeFromEdges");
+        ImGui::Text("io.BackendFlags: 0x%08X", io.BackendFlags);
+        if (io.BackendFlags & ImGuiBackendFlags_HasGamepad)             ImGui::Text(" HasGamepad");
+        if (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)        ImGui::Text(" HasMouseCursors");
+        if (io.BackendFlags & ImGuiBackendFlags_HasSetMousePos)         ImGui::Text(" HasSetMousePos");
         ImGui::Separator();
         ImGui::Text("io.Fonts: %d fonts, Flags: 0x%08X, TexSize: %d,%d", io.Fonts->Fonts.Size, io.Fonts->Flags, io.Fonts->TexWidth, io.Fonts->TexHeight);
         ImGui::Text("io.DisplaySize: %.2f,%.2f", io.DisplaySize.x, io.DisplaySize.y);